Messages in this thread | | | Date | Sat, 4 Oct 2008 10:55:19 -0700 | From | "Yinghai Lu" <> | Subject | Re: Strange mtrrs in Aspire One |
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On Sat, Oct 4, 2008 at 6:22 AM, J.A. Magallón <jamagallon@ono.com> wrote: > On Mon, 29 Sep 2008 18:05:51 -0700, "Yinghai Lu" <yinghai@kernel.org> wrote: > >> On Mon, Sep 29, 2008 at 4:57 PM, J.A. Magallón <jamagallon@ono.com> wrote: >> > Hi all... >> > >> > My aspire one is giving some strange MTRR settings with rc7-git5 (and >> > prevous kernels, but that is what I run now...): >> > >> > one:~> cat /proc/mtrr >> > reg00: base=0xfffe0000 (4095MB), size= 128KB: write-protect, count=1 >> > reg01: base=0xfffc0000 (4095MB), size= 128KB: uncachable, count=1 >> >> could make mtrr_cleanup to support 128K gran_size >> >> > reg02: base=0x00000000 ( 0MB), size= 256MB: write-back, count=1 >> > reg03: base=0x10000000 ( 256MB), size= 256MB: write-back, count=1 >> > reg04: base=0x1f800000 ( 504MB), size= 8MB: uncachable, count=1 >> > reg05: base=0x1f600000 ( 502MB), size= 2MB: uncachable, count=1 >> > reg06: base=0x1f500000 ( 501MB), size= 1MB: uncachable, count=1 >> >> > reg07: base=0x00000000 ( 0MB), size= 128KB: uncachable, count=1 >> .. >> > BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) >> >> last entry is really sick... >> > > I have applied the patches you have posted in other threads, and this > give a very strange result. The mtrr cleanup did nothing, and I had to put > some printk's all around.
will have one patch to assume the [0, 1M) to be coverred by var mtrrs.
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